org.apache.sedona.core.spatialPartitioning

Class KDBTreePartitioner

java.lang.Object

org.apache.spark.Partitioner

org.apache.sedona.core.spatialPartitioning.SpatialPartitioner

org.apache.sedona.core.spatialPartitioning.KDBTreePartitioner

All Implemented Interfaces:

Serializable

public class KDBTreePartitioner
extends SpatialPartitioner

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.sedona.core.spatialPartitioning.SpatialPartitioner

grids, gridType

Constructor Summary

Constructors

Constructor and Description
KDBTreePartitioner(KDB tree)

Method Summary

Modifier and Type	Method and Description
DedupParams	getDedupParams()
int	numPartitions()
Iterator<scala.Tuple2<Integer,org.locationtech.jts.geom.Geometry>>	placeObject(org.locationtech.jts.geom.Geometry spatialObject) Given a geometry, returns a list of partitions it overlaps.

Methods inherited from class org.apache.sedona.core.spatialPartitioning.SpatialPartitioner

getGrids, getGridType, getPartition

Methods inherited from class org.apache.spark.Partitioner

defaultPartitioner

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

KDBTreePartitioner

public KDBTreePartitioner(KDB tree)

Method Detail

numPartitions

public int numPartitions()

Specified by:

numPartitions in class org.apache.spark.Partitioner

placeObject

public Iterator<scala.Tuple2<Integer,org.locationtech.jts.geom.Geometry>> placeObject(org.locationtech.jts.geom.Geometry spatialObject)
                                                                               throws Exception

Description copied from class: SpatialPartitioner

Given a geometry, returns a list of partitions it overlaps.

For points, returns exactly one partition as long as grid type is non-overlapping. For other geometry types or for overlapping grid types, may return multiple partitions.

Specified by:

placeObject in class SpatialPartitioner

Throws:

Exception

getDedupParams

@Nullable
public DedupParams getDedupParams()

Specified by:

getDedupParams in class SpatialPartitioner